Reznor EEDU Unit Installation Manual - Manual (Page 8)

Form I-EEDU, Page 8
4.0 Dimensions
& Clearances
(cont'd)
WARNING
Units must be level for proper operation. Do not place or add additional
weight to the suspended furnace. See Hazard Levels, page 2.
5.0 Suspending or
Mounting the
Furnace
Before installing the furnace, check the supporting structure to be used to verify that it
has sufficient load-carrying capacity to support the weight of the unit.
Service and combustion air clearances apply to both suspended and mounted heater.
Net Weight by Size
Size 75 100 125 140 170 200 225 250 300 350 400
Lbs 104 104 126 128 150 172 194 216 262 306 328
kg 47 47 57 58 68 78 88 98 119 139 149
5.1 Weights
The furnace is provided with four 15/32" (12mm) diameter holes to provide four-point
suspension. To suspend the unit, use 7/16"-16 threaded rod and the hardware shown
in FIGURE 6A. See FIGURE 6A, right side, for details. NOTE: A hanger adapter kit
Option CK3 with swivels for 1" pipe is available. See FIGURE 6B.
5.2 Suspending the
Furnace
Centerline of Hangers
A
16”
(406mm)
15/32” (12mm)
Diameter Holes
7/16” Diameter
Threaded Rod
Nut for 7/16” Rod
15/32” (12mm)
Diameter Hole
Hanger
Split Ring Lockwasher
Nut for 7/16” Rod
Front View
Side V
iew
FIGURE 6B - Option CK3
Hanger Kit (P/N 57959) with
four threaded sockets
Free-turning threaded
socket (1" pipe)
FIGURE 6A -
Suspending a
Single Furnace
5.3 Mounting the
Furnace
Standard position
of hanger bracket.
To base mount,
remove hanger
bracket and
re-locate to
position below.
Re-locate hanger
bracket to this
location when base
mounting heater.
Access
Panel in
Duct
Access
Panel in
Duct
Limit Control
(on discharge
side of unit)
Airflow
Combustion Air Inlet
Combustion
Air Inlet
6” (152mm)
minimum
clearance
10” (254mm)
12” (305mm) clearance
to combustibles required
from furnace bottom
Keep area clean and
maintain 29” (737mm)
clearance for burner
rack service.
FIGURE 7 -
Base-
Mounted
Furnace
Required Clearances
Front Top Flue Connector Sides Bottom Rear
6" 6" 6" 12" 12" 29"
152mm 152mm 152mm 305mm 305mm 737mm
Change position of the
hanger bracket as shown in
FIGURE 7.
When the furnace is
mounted on combustible
material, a minimum
clearance of 12" (305mm)
is required.
4.2 Clearances (cont'd)
"A"
Size inches mm
75-100 14-5/8 371
125-140 17-3/8 441
170 20-1/8 511
200 22-7/8 581
225 25-5/8 651
250 28-3/8 721
300 33-7/8 860
350 39-3/8 1000
400 44-7/8 1140